ARTHROPODAARTHROPODAWriter : Ani RamliWriter : Ani Ramli

B.B. Arthropoda Arthropoda Classification Classification

Arthropoda classified into 4 classes :

1.Crustaceae2.Insect Class3.Arachnoidea4.Myriapoda

1. Crustaceae1. Crustaceae

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A. The Characteristic and Character :– The body is classified to cephalothoraks and

abdomen.– It have 2 pairs antenna and one pair foot at

each joint of the body.– The habitat is in the fresh water and in the

sea.– The disgestion device is complete and it have

opened circulation blood.– The respiration organ is a gills and the

ekskresi using a green gland.– It have tangga tali sense system.– The scent device is antenulla and the organ of

touch is antenna.

Structure of CrustaceaeStructure of Crustaceae

B. Crustaceae Classification :Classified into 2 groups :

1. Entomostraka (Low Grade Shrimp)Classified into 5 subclasses :a. Subclass Branchiopoda

Example : Daphnia polexb. Subclass Ostrakoda

Example : Cypridina spc. Subclass Copepoda

Example : Orgassilus versicolor (fish parasite)d. Subclass Branchiura

Example : Argulus foliacetus (ship quay destroyer)e. Subclass Cirripedia

Example : Lepas fascicularis2. Malakostraka (High Grade Shrimp)

Classified into 3 ordo :a. Ordo Isopoda (Udang berkaki sama)

Example : Limnoria ugronum (wood destroyer)b. Ordo Stomatopoda (Udang belalang)

Example : Squilla mantisc. Ordo Decapada (Udang berkaki sepuluh)

Example : Cembarus affinis (fresh water shrimp)Portunus sexdentatus (crab)Birgus latro (ketam kenari)

CrustaceaeCrustaceae

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C. The Role/Benefit of The Crustaceae for Human :1. Entomostraka live as a zooplankton

for a fish feed.2. Malakostraka, example : shrimp,

crab, and small crab is an animalsm proteina for human.

3. Yuyu is a rice destroyer gem.4. Ketam kenari is a coconut tree

destroyer.

CrustaceaeCrustaceae

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2. InsectA. The Characteristic are :

The body dividen into : taput, thoraks and abdomen.

On the head there are a pairs of feeler, a pairs of composite eye, some of single eye, and mouth instruments/tools.

Mouth instruments dividen into 4 kinds based on the function : to bite, to lick, to suck, to thrust and lick.

The disgestion system is perfect and uncovered of blood circulation.

Respiration system with trakea and nerve system with rope ledder.

The instrument/tool of export is little tube of malphigi.

Sexual reproduction.

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Structure of InsectStructure of Insect

B. The Classification of Insect :Dividen into 2 subclasses :

1. Apterygota (Unwinged Insect)Example : Book flea (Lepisma sacharina)

2. Pterygota (Winged Insect)Divided into some ordo :

a. Isoptera OrdoExample : Flying ant (Reticulitermes flavipes)

b. Odonata OrdoExample : Dragon fly (Macromia mognifiea)

c. Orthoptera OrdoExample : Cocroach (Periplaneta americana)

Homage grasshopper (Stagmomantis carotina)Cricket (Oryllus domesticus)Leaf grasshopper (Macrocentum rhombifolium)

d. Hemiptera OrdoExample : Rice pest (Leptocarisa acuta)

Bug (Cimex rotundatus)e. Homoptera Ordo

Example : Garengpung (Dundibia magnifera)Head flea (Pediculus capitis)

f. Neuroptera OrdoExample : Undur-undur (Myrmeleon frontalis)

g. Coleoptera OrdoExample : Coconut bumble bee (Oryctes rhinoceros)

Fire fly (Lampyris sp)h. Hymeroptera Ordo

Example : Honey bee (Apis Indica)Bees hanging (Vespa maculata)

i. Diptera OrdoExample : Mosquito (Culex fatigan)

Fly (Musca domestica)j. Siphonoptera Ordo

Example : Mouse flea (Xenopsylla cheopsis)Cat flea (Ctenocephallus felis)

k. Lepidoptera OrdoExample : Elephant butterfly (Attacus atlas)

Silkworm butterfly (Bombyx mori)

Insect ClassInsect Class

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C. METAMORPHOSISThere are two metamorphosis in insect :1. Simple metamorphosis/hemimetabola

Step : egg – nympha – imago Example : grasshopper, dragonfly, lipas

2. Perfect metamorphosis/holometabola Step : egg – larva – pupa – imagoExample : butterfly, fly, bumble bee

Insect ClassInsect Class

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D. The Role of Insect for Human/People :1. The disadvantage role :

• Cocroach/lipas bearer of disease• Bumble bee of rice destroy the rice• Anopheles mosquito mediator of malaria disease• Glossina palpalis fly mediator of sleeping disease• Bug blood sucker• Mouse flea mediator of pest disease

2. The advantage role :• Coccinela arquata bumble bee predator• Apis indica producer of honey• Butterfly help pollination procces• Pupa of silkworm producer of silk thread• Colembolla and Grilotalpa help decrease the

rubbish

Insect ClassInsect Class

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3. Arachnoidea3. ArachnoideaA. The Characteristic Arachnoidea:

• The body consist of four pairs of legs and two mouths. That is :– The stinger/kelisera a place for outside the poison.

– The tewwzers/pedipalpus it is for catch the prey.• It has not antenna and it breaths with the book lungs.

• The system of circulation of blood is uncovered.• The nervous system is “tangga tali”.• The system of digestion is perfect.• The ekskresi system with Malphigi artery.• It has single eye and organ of touch is many hair that spread on the body.

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Structure of ArachnoideaStructure of Arachnoidea

B. The Classification of Arachnoidea :Consist of three ordos :1. Scorpionida’s ordo

Example : Scorpion/large black scorpion2. Arachnida’s ordo

Example : Spider (Araneus)The ipil-ipil (Neptilla)

3. Acarina’s ordoExample : Skin blemish (Sarcoptes Scabei)

Mite (Dermacentor)

ArachnoideaArachnoidea

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C. The Role of Arachnoidea for Human 1. As a predator of insecta, pest, and

disease.2. Cause of scabies at human

Sarcoptes scabei.3. Cause of parasite at dog and many

kind of pet dog flea.4. Cause of breath allergy

Dermatophagoides farinae.

ArachnoideaArachnoidea

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4. Myriapoda4. MyriapodaA. Characteristics of Myriapoda:

•The body is dividen into a caput and a abdoment.

•On the head, there a pair of single eye, a pair of a big sensing instrument, a pair of small vertebra sensing.

•Have a vertebra abdoment, there can found a pair or two pairs of vertebra’s foot.

•Respiratory system with trachea.•Circulation of the blood’s system uncovered and nervous system is “tangga tali”.

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B. Classification Myriapoda:Divided into 2 ordos :1. Diplopoda’s ordo

Example : Keluwing(Julus terestis)2. Chilopoda’s ordo

Example : Centipede (kelabang) Scolopendrella sp

MyriapodaMyriapoda

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Julus terestrisJulus terestris(Keluwing)(Keluwing)

Centipede spCentipede sp(Kelabang)(Kelabang)

C. Myriapoda’s Function in Ecosystem 1. Keluwing as detritivor.2. Centipede as carnivore.

MyriapodaMyriapoda